[Fang Chengpei and Zheng's laryngology].

The relationship between Fang Chengpei, a famous physician of the Xin'an school of traditional Chinese medicine and a master of traditional Chinese folk arts of the Qing Dynasty, and successors of Zheng's laryngology of Xin'an was even closer than that between his close relatives and friends. Zheng Meijian imparted laryngological medical skills to Fang, made a preface to Shou Yi Mi Lu (Secret Records of Medical Skills)--a secret document handed down in Fang-family, gave directions to and held discussions with Fang on the doctrine on five elements' motion and six kinds of natural factors. Fang participated in naming, prefacing, and revising Chong Lou Yu Yue (A Jade Key to Laryngeal Diseases) in which three secret recipes for laryngeal diseases that had been handed down in Fang's family were included. Together with Zheng Shufu, he wrote Chong Lou Yu Yue Xu Pian (Continuation of A Jade Key to Laryngeal Diseases). After Fang had passed away, many of his belongings were left in Zhengs' house, including medical documents, calligraphy, music scores, medical instruments, etc. Fang made a great contribution to the academic development of Zheng's Laryngology.